Your Flight
We analysed more than 14,500 data points along your route from Frankfurt Airport, Frankfurt am Main to St. Louis Lambert International Airport, St Louis.
Lufthansa
FRA
STL
LH448
Lufthansa · Live forecast
FRA
→
STL
88
Calm Score
"A smooth ride ahead — sit back and enjoy."
9h 45m
Duration
3,981 nm
Distance
40,000 ft
Cruise Altitude
HIGH
Confidence
Turbulence comfort along route
Comfort score combines turbulence probability with intensity, higher means rougher
Smooth
Light
Moderate
Severe
Notifications not available
This flight has already departed.
We know turbulence can feel scary — especially on long flights.
This report is built for you: what bumps feel like, when they happen, and why you'll be completely safe. 1 in 3 passengers feel exactly like you.
Right now on your route
Live pilot reports from aircraft flying FRA → STL
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP ASL500 5647N01404W 0953 F330 SUNOT 0958 5801N02000W MS45 240/56 KT YUARB QXS BRR 220953 J31A
5m ago
Smooth
ARP NJE578L 5706N03409W 0953 F430 5701N04000W 1017 5601N05000W MS43 232/38 KT CSGLC QXT AME 220953 M63A
5m ago
Smooth
ARP ACA858 5501N01817W 0952 F350 RESNO 1005 NETKI MS48 252/62 KT CFITL DDL XXF 220952 F69A
6m ago
Smooth
ARP ETD47B 5529N04306W 0952 F360 5400N05000W 1024 NEEKO MS39 240/13 KT A6BNG QXT AME 220952 L29A
6m ago
Smooth
ARP ASL500 5642N01342W 0951 F330 SUNOT 0958 5801N02000W MS44 243/50 KT YUARB QXS BRR 220951 J30A
7m ago
AI-powered flight briefing
14,500 data points analyzed
· HIGH confidence
Your Journey Beta
1 hour 10 minutes and 8 hours 15 minutes into the flight: Some moderate bumps expected.
The crew may adjust altitude or ask you to stay seated during these sections.
The rest of the flight should be smooth.
Your route takes you crossing the North Atlantic Ocean – conditions there can sometimes cause light turbulence.
Smooth Flight
We're expecting smooth conditions throughout your flight. You can sit back and relax.
Takeoff
Takeoff should feel smooth with possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 44 knots. These winds may delay arrival by up to 45 minutes.
Landing
Landing should feel smooth with possible light bumps with typical approach conditions.
You're in Safe Hands
If you feel nervous at any point, remember that turbulence is expected, safe, and part of normal flying. The crew is monitoring everything, and the aircraft is built to handle far more than anything you will feel. Have a safe and calm flight.
Relaxation Exercises
ZeroTurb Index (ZTI): Powered by our turbulence prediction algorithm combining atmospheric Richardson Number, wind shear analysis, temperature gradients, and geomagnetic activity. Learn more
Flight Timeline 9h 45min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Moderate
1:30-2:00
Light
2:00-2:29
Light
2:29-2:58
Light
2:58-3:27
Light
3:27-3:56
Light
3:56-4:25
Light
4:25-4:54
Light
4:54-5:23
Light
5:23-5:52
Smooth
5:52-6:21
Smooth
6:21-6:50
Smooth
6:50-7:19
Smooth
7:19-7:48
Smooth
7:48-8:17
Moderate
8:17-8:46
Moderate
8:46-9:15
Light
Landing
Light
Smooth
Light
Moderate
Severe
Longer bars indicate higher turbulence intensity. Values shown are the maximum for each time segment.
Airport conditions
Live weather at departure and arrival
FRA
Frankfurt Airport — Departure
Wind
8 kt (30°)
Sky
NSC
Temperature
30°C
Conditions
VFR — Clear conditions, no delays expected
STL
St. Louis Lambert International Airport — Arrival
Wind
10 kt G21 (360°)
Sky
Overcast
Temperature
17°C
Conditions
MVFR — Reduced visibility, minor delays possible
Your flight details
Departure timing and aircraft information
Morning Flight Departure
Time of day
Morning Flight
Tip
Morning flights typically experience smoother conditions as the atmosphere is more stable and thermal turbulence hasn't yet developed.
When
Today
Data sources & our approach
ZeroTurb's Custom Algorithm: Our proprietary
ZeroTurb Index (ZTI) combines three meteorological indices weighted by their
predictive accuracy — giving you transparent, passenger-focused turbulence probability instead
of vague categories.
This forecast integrates data from:
- ECMWF Open Data — Global atmospheric model (wind/temperature at 13 flight levels)
- NOAA Aviation Weather Center — Pilot Reports (PIREPs), SIGMETs/AIRMETs, TAFs
- NOAA Space Weather Prediction Center — Aurora forecasts for polar routes
- AviationStack API — Flight schedules and airline operational data
Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.